gentoo-overlay/mail-filter/rblcheck/files/rblcheck-1.5-configure.patch

--- rblcheck-1.5/configure	2005-07-01 10:50:36.000000000 +0100
+++ rblcheck-1.5/configure	2005-07-01 10:57:05.000000000 +0100
@@ -1529,13 +1529,12 @@
 cat > conftest.$ac_ext <<EOF
 #line 1531 "configure"
 #include "confdefs.h"
-/* Override any gcc2 internal prototype to avoid an error.  */
-/* We use char because int might match the return type of a gcc2
-    builtin and then its argument prototype would still apply.  */
-char res_query();
+
+/* Include <resolv.h> to get macro definition for res_query */
+#include <resolv.h>
 
 int main() {
-res_query()
+res_query("",0,0,"",0)
 ; return 0; }
 EOF
 if { (eval echo configure:1542: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then